<template>
  <div class="permission-container">
    <div class="app-container">
      <!-- 表格 -->
      <el-card>
        <div style="text-align: right; margin-bottom: 20px">
          <el-button
            type="primary"
            size="small"
            @click="hAdd(1, '0')"
          >添加权限</el-button>
        </div>
        <el-table :data="list" border row-key="id">
          <el-table-column prop="name" label="名称" />
          <el-table-column prop="code" label="标识" />
          <el-table-column prop="description" label="描述" />
          <el-table-column label="操作">
            <template slot-scope="scope">
              <el-button
                v-if="scope.row.type === 1"
                type="text"
                @click="hAdd(2, scope.row.id)"
              >添加</el-button>
              <el-button
                type="text"
                @click="hEdit(scope.row.id)"
              >编辑</el-button>
              <!-- 子级的不允许删除 -->
              <el-button
                v-if="scope.row.children.length === 0"
                type="text"
                @click="hDel(scope.row.id)"
              >删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
    </div>
    <el-dialog :visible.sync="showDialog" :title="isEdit ? '编辑' : '添加'" @close="hClose">
      <!-- 表单内容 -->
      <el-form ref="formDataRef" :model="formData" label-width="100px">
        <el-form-item label="权限名称" prop="name">
          <el-input v-model="formData.name" />
        </el-form-item>
        <el-form-item label="权限标识" prop="code">
          <el-input v-model="formData.code" />
        </el-form-item>
        <el-form-item label="权限描述" prop="description">
          <el-input v-model="formData.description" />
        </el-form-item>
        <el-form-item label="权限启用">
          <el-switch
            v-model="formData.enVisible"
            active-text="启用"
            active-value="1"
            inactive-text="不启用"
            inactive-value="0"
          />
        </el-form-item>
      </el-form>

      <template #footer>
        <div style="text-align: right">
          <el-button @click="showDialog = false">取消</el-button>
          <el-button type="primary" @click="hSubmit">确定</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script>
import {
  getPermissionListAPI,
  addPermissionAPI,
  getPermissionDetailAPI,
  delPermissionAPI,
  updatePermissionAPI
} from '@/api/permissions'
import { getTree } from '@/utils/getTree'
export default {
  data() {
    return {
      list: [],
      showDialog: false,
      formData: {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      },
      isEdit: false
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    // 关闭dialog
    hClose() {
      this.$refs.formDataRef.resetFields()
    },
    // 表单提交按钮
    hSubmit() {
      this.isEdit ? this.updatePermission() : this.addPermission()
    },
    // 用户点击添加
    hAdd(type, pid) {
      this.isEdit = false
      this.formData.type = type
      this.formData.pid = pid
      this.showDialog = true
    },
    // 点击编辑
    hEdit(id) {
      this.isEdit = true
      this.showDialog = true
      this.getPermissionDetail(id)
    },
    // 点击删除
    hDel(id) {
      this.$confirm('确认删除？', '系统提示').then(() => {
        this.delPermission(id)
      }).catch(() => {

      })
    },
    // 初始化权限列表
    async getPermissionList() {
      try {
        const res = await getPermissionListAPI({ page: 1, pagesize: 100 })
        console.log('', res)
        // 保存数据
        this.list = getTree(res.data)
      } catch (err) {
        console.log('', err)
      }
    },
    // 新增权限
    async addPermission() {
      try {
        const res = await addPermissionAPI(this.formData)
        console.log('', res)
        this.showDialog = false
        // 重新获取数据
        this.getPermissionList()
        this.$message.success('添加成功')
      } catch (err) {
        console.log('', err)
      }
    },
    // 根据id查询权限详情，表单回填
    async getPermissionDetail(id) {
      try {
        const res = await getPermissionDetailAPI(id)
        console.log('', res)
        // 保存数据
        this.formData = res.data
      } catch (err) {
        console.log('', err)
      }
    },
    // 根据id删除权限
    async delPermission(id) {
      try {
        const res = await delPermissionAPI(id)
        console.log('', res)
        // 保存数据
        this.$message.success('删除成功')
        this.getPermissionList()
      } catch (err) {
        console.log('', err)
      }
    },
    // 更新权限
    async updatePermission() {
      try {
        await updatePermissionAPI(this.formData)
        // 保存数据
        this.$message.success('更新成功')
        this.getPermissionList()
        this.showDialog = false
      } catch (err) {
        console.log('', err)
      }
    }
  }
}
</script>
